2 pcs 7.4V 950mAh 25C Lipo Battery with JST Connector for The Blade 200 QX and CX/CX2/CX3 WLtoys X520 RC Helicopter

Number of Batteries: 2 Lithium Polymer batteries required. (included)
Battery Cell Composition: Lithium Polymer
Unit Count: 2
Voltage: 7.4 Volts